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I Table 1 <br /> i <br /> Groundwater Monitoring Data and Analytical Results <br /> Chevron Service Station##9-6171 — <br /> l 6633 Pacific Avenue <br /> J I Stockton,California <br /> EXPLANATIONS ' <br /> Groundwater monitoring data and laboratory analytical result%prior to May 22,2000,were compiled from reports prepared by Blaine Tech Services,Inc <br /> TOC=Top of CasingB=Benzene J TOG=Total Oil&Grease <br /> J _ I <br /> (ft)=Feet 1 T 4Toluene (ppb)=Parts per billion <br /> GWE=Groundwater Elevation] E Ethylbenzene --=Not Measured/Not Analyzed <br /> (msl)=Mean sea level j' f X fl Xylenes QA=Quality Assurance/Trip Blank <br /> DTW=Depth to Water I MTBE=Methyl tertiary butyl ether <br /> TPH-G=Total Petroleum Hydrocarbons as Gasoline i EDB=Ethylene Dibromide- - <br /> * TOC elevations were surveyed in July of 2001,by Morrow Surveying Elevations are based on San Joaquin County Benchmark 12,a brass disc marking <br /> cos monument stamped"I�N-4"in monument box on the cast side of Pacific Avenue at the approximate centerline BeJamin Holt Drive,(Elevation= 11 02) <br /> Chromatogram pattern indicate,;an unidentified hydrocarbon 1 t <br /> Z Chromatogram pattern indicates a gas and unidentified hydrocarbon' ` <br /> Confirmation run r <br /> Laboratory report indicates Bis-(2-Ethylhexyl)-Phthalate was detected at 1,5 ppb and Butyl-Benzyl-Phthalate was detected at 9 9 ppb <br /> FGasoline range concentration reported,peaks are representative of tetrachloroethane and trace amount of gasoline k = <br /> Laboratory report indicates discrete peaks I� i <br /> MTBE by EPA Method 8260 - <br /> MTBE by EPA Method 8260 was analyzed outside the EPA recommended holding time - <br /> i ' <br /> 9 Survey data unavailable I <br /> l r <br /> 10 BTEX and MTBE by EPA Method 8260 <br /> F i r <br /> _ 4 <br /> x <br /> 9-6171 x, 121 - - _ I� l , As 5103 <br />